Jacob r



(NoModel.) 1

J. R. SCOTT.

SKIVING MACHINE.

No. 470,015. Patented Mar. 1, 1892.

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JACOB R. SCOTT, OF NEV YORK, N. Y.

SKIVING-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 470,015, dated March 1, 1892.

Application filed October 8, 1891. Serial No. 408,203. (No model.)

To all whom it mag/concern.-

Be it known that I, JACOB R. Soorr, a citi-4 which can also be used for other articles.

The improvements which form the subjectmatter of my present invention are pointed out in the following specification, and claimed, and illustrated in the accompanying drawings, in which- Figure lis a side view looking in the direction of arrow 1, Fig. 2. VFig.2 is a front view looking in -the direction of arrow 2, Fig. l. Fig. 3 is a vertical section in the plane .fr 0c, Fig. 2. Fig. 4 is a plan or top view. Fig. 5 is a plan View of a counter-stiener such as may be produced on my machine. Fig. 6 is a transverse section of the same in the plane 2 3, Fig. 5. Fig. 7 is a detached View showing the treadle connection on a smaller scale than the previous figures.

In the drawings, the -letter A designates the bed-plate, from which rise two standards B B', which form the bearings for the counter-shaft C and for the driving-shaft D. These two shafts are geared. by cog-wheels c d, Figs. l and 2, and on the shaft C is also mounted a cog-wheel c', which meshes into a cog-wheel e, which is loosely mounted on the shaft E, which carries the clutch F and the roller-die G. The shaft E has its bearings in eyes ff, formed on a frame H, which swings on the shaft C, being provided with eyes g g, which engage said shaft, as shown in Fig. 4. A spring h, Fig. 2, has the tendency to force the eyes f f of the frame H, together with the shaft E and roller-die G, upward; but the roller-die is held down in its working position by the following means: From one of the eyes f rises the arm I, which carries a set-screw 7L', that serves to adjust a tappet-arm J, which swings on a pivot i, secured in lugs j j, formed on the frame H, Figs. l and 4. This tappet-arm bears against the end of a lever K, which has its fulcrum on a pivot 7s, secured in the upper forked end of the standard B. The outer end of this lever connects by a rod L with a treadle M, Figs. 1, 3, and 7, and this rod is exposed to the action of a powerful spring l,

which has a tendency to retain the lever K in the position shown in Figs. 1 and 3, thereby retaining the roller-die G in its working position against the action of the spring 7L. Vhen the treadle M is depressed, the inner end of the lever K moves upward and the roller-die G is forced'upward by the spring 7L. If the parts are in the position shown in Fig. 1 and the roller-die is locked down in its working position, this position can be adjusted by means of the set-screw h. If this set-screw is turned outward, the roller-die is permitted to rise, and vice versa.

On the driving-shaft D swings a frame N, provided with two eyes 'a a, which form the bearings for the shaft O of the feed-roller P. A spring m has a tendency to force the feedjust the position of the feed-roller in regard to the roller-die. The shaft O is geared with the shaft E by cog-wheels o6 o6.

R, which is fastened to the bed-plate by one or more screws and the cutting-edge of which extends between the two rollers and in line with the bite or meeting line of said rollers. Behind the rollers is situated 'a table T, provided with an adjustable end gage U and with an adjustable edge gage V. The end gage U is secured to the table by a set-screw p, and the edge gage V is in screw-threaded engagement with a screw-shaft r, having its bearings in brackets r2, secured to the table turning with thescrew-shaft o' through the medium of a rod r', supported by one of the brackets r2, in such manner that by rotating the screw-shaft the edge gage V can be adjusted from one side of the table T to the opposite side thereof, so that when the first half of the counter or stiifener has been skived the edge gage can be adjusted into posit-ion for the skiving operation of the second half of the counter or stiffener.

firmly mounted on the shaft E of the rollerdie and the rim of which extendsl over the hub e2 of the cog-wheel e, Fig. 3. This hub is provided with one or more teeth e3, and on The knife Q is rmly secured to a standard T, Fig. 4. The edge gage V is prevented from4 The clutch F consists of a drum, which is roller upward, and a set-screw 0 serves to ad- ICO the clutch is mounted a pawl f2, which swings on a pin f3 and is subjected to lthe action of a spring f4. Vhen the pawl is free to follow the action of this spring, it engages one of the teeth e3, and the shaft E is set vin motion; but when the pawl f2 is thrown out of gear with the hub of the wheel c the motion of the shaft E stops.

For the purpose of throwing the pawl f2 ro out of gear I use a dog s2, which is adjustably fitted into the head of a lever S, which swings freely on the counter-shaft() and the tail of which is exposed to the action of a spring s3, which has a tendency to retain said lever iu t5 the position shown in Fig. 3. The tail of the lever S is exposed to the action of a lever IV, which swings on a pivot w, so that when the rear end of this. lever is depressed the lever S is caused to swing in the direction of arzo row 4, Fig. 3, and as the dog S2 strikes the tail of the pawl f2 the latter is thrown out of gear with the hub e2 of the cog-wheel e and the motion of the shaft E stops. The dog s2 can be adj usted by means of a worm-screw s4, so that z 5 it acts upon the pawl f2 at an earlier or later period, and the time when the motion of the shaft E is stopped can be adjusted according to the length of the article to be skived. The lever XV connects by a rod X with the treadle 3o M, Fig. 7, and said rod is exposed to the action of a spring 102, which has a tendency to retain the lever \V in the position shown in Fig. 3 and to throw the dog .S2 out of engagement with the pawl f2. lVhen the treadle M 3 5 is depressed, the shaft E is raised and at the same time its motion is stopped.

The machine illustrated in the drawings is constructed for skiving counter-stiffeners, and for this purpose the roller-die G is pro- 4o vided with a cavity g, corresponding in its contours, depth, width, and length `to one-half of the length of the counter-stiffeners to be prepared-that is to say, to that portion of the article shown in Fig. 5 which is contained between the tip l and the line 2 3. The gages T and V are adjusted to correspond to the article to be produced. The roller-die is raised and the blank is introduced so as to bear with its end against the gage U and with its edge 5o against the gage V. Then the roller-die is lowered andthe machine is set in motion. As the two rollers are rotated in the direction of the arrows marked on them in Fig. l the blank is forced out against the cutting-edge of the knife G and those portions which project over the sides and end of the cavity g are cut olf, thereby finishing one half of the counter-stiffener. In order to finish the other half the edge gage V has to be adjusted near the op- 6c posite side.of the table T, and then the rcmaining half of the blank is treated in the manner above described.

I do not claim in this specication the devices shown and described in an application for a patent tiled by me August 20, 1891, Serial No. 403,231.

l-Vhat I claim as new, and desire to secure by Letters Patent, is-

l. The co1nbination,with the feed-roller, the roller-die, and the stationary knife situated on one side of the rollers, of a table situated on the opposite side of said rollers, an end gage U, adjustable on the table, an edge gage V, a transverse screw-shaft r, supported in brackets on the table and in screw-threaded engagement with the edge gage, and means for preventing the edge gage from turning when the screwshaft is rotated to adj ust such edge gage from one side of the table to the opposite side thereof, substantially as described.

2. The combination,with the feed-roller,tl1e roller-die, and the stationary knife situated on one side of the rollers, of a table situated on the opposite side of said rollers, a pair of brackets r2, secured to the table,a transverse screw-shaft r, supported by the brackets, an edge gage V in screw-threaded engagement with the screw-shaft,and means for preventing the edge gage from turning when the screw-shaft is rotated to adjust such edge gage from one side of the table to the opposite side thereof, substantially as described.

8. The combination,with the feed-roller, the roller-die, and the stationary knife situated on one side of the rollers, of a table situated on the opposite side of the rollers, a pawl and clutch for throwing the rollers in and out of gear with the driving-shaft, mechanism for raising and lowering the roller-die, a lever for actuating the pawl, and the mechanism for raising and lowering the roller-die, substantially as described.

4. The conibination,with the feed-roller, the roller-die, and the stationary knife, of a swinging frame II, the bearings ff for the shaft of the roller-die, formed in the free end of said frame, the spring on, acting on said frame, the arm I, extending from one of these bearings, the set-screw it', carried by said arln,the tappet-arm J, pivoted 'to the frame II, the lever K, and means for actuating this lever, substantially as described.

In testimony whereof I have hereunto set iny hand in the presence of two subscribing witnesses.

JACOB R. SCOTT Witnesses:

J. VAN SAN'rvooRD, W. IIAUFF.

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